Results 41 to 50 of about 146,061 (303)

A new realization of wave digital filters using GIC and fractional bilinear transform

open access: yesEngineering Science and Technology, an International Journal, 2016
In this paper, a new class of second-order digital filters is developed by using the concept of wave characterization, fractional bilinear transform and generalized immittance converter (GIC).
Richa Barsainya   +2 more
doaj   +1 more source

Frequency response and tunability of grating-assisted directional couplers [PDF]

open access: yes, 1991
The spectral properties of grating-assisted directional couplers are studied using an improved coupled mode formulation. Key parameters for the design of these structures, such as the grating period, the coupling length, and other structural parameters ...
Griffel, Giora, Yariv, Amnon
core   +1 more source

Fully-Differential Multifunctional Electronically Configurable Fractional-Order Filter with Electronically Adjustable Parameters

open access: yesElektronika ir Elektrotechnika, 2018
The paper presents a novel solution of a fully-differential 1+α fractional-order filter. The filter can provide low-pass, high-pass, band-pass and band-stop transfer functions without a necessity of a circuitry change (filter is electronically ...
Lukas Langhammer   +3 more
doaj   +1 more source

Comparison of smoothing filters in analysis of EEG data for the medical diagnostics purposes [PDF]

open access: yes, 2020
This paper covers a brief review of both the advantages and disadvantages of the implementation of various smoothing filters in the analysis of electroencephalography (EEG) data for the purpose of potential medical diagnostics.
Blaszczyszyn, Monika   +6 more
core   +1 more source

MO-CCCII-Based Single-Input Multi-Output (SIMO) Current-Mode Fractional-Order Universal and Shelving Filter

open access: yesFractal and Fractional
This study introduces an innovative filter topology capable of providing simultaneous positive and negative gain outputs for one-fractional order LP, with high-pass, all-pass, and fractional-order shelving filter responses.
Fadile Sen   +3 more
doaj   +1 more source

Simultaneous denoising and enhancement of signals by a fractal conservation law

open access: yes, 2010
In this paper, a new filtering method is presented for simultaneous noise reduction and enhancement of signals using a fractal scalar conservation law which is simply the forward heat equation modified by a fractional anti-diffusive term of lower order ...
Afaf Bouharguane   +23 more
core   +1 more source

An Improved Variable Structure Adaptive Filter Design and Analysis for Acoustic Echo Cancellation [PDF]

open access: yes, 2015
In this research an advance variable structure adaptive Multiple Sub-Filters (MSF) based algorithm for single channel Acoustic Echo Cancellation (AEC) is proposed and analyzed.
Chandra, M., Kar, A.
core   +2 more sources

The fractional orthogonal derivative

open access: yes, 2014
This paper builds on the notion of the so-called orthogonal derivative, where an n-th order derivative is approximated by an integral involving an orthogonal polynomial of degree n. This notion was reviewed in great detail in a paper in J. Approx. Theory
Diekema, E.
core   +2 more sources

Compact wideband bandpass filter using single corners-cut isosceles triangular patch resonator [PDF]

open access: yes, 2010
Compact and simple bandpass filter (BPF) structure using microstrip isosceles triangular patch resonator (ITPR) is proposed. The new filter design technique is based on two main ideas: Firstly, cutting the corners of the triangular structure, to make the
Alhawari, Adam Reda Hasan   +1 more
core   +1 more source

Electronically Adjustable Emulator of the Fractional-Order Capacitor

open access: yesElektronika ir Elektrotechnika, 2019
This paper presents a design of the controllable emulator of the FOC (Fractional-Order Capacitor) and its application. The circuit is based on 5th-order RC topology (type Foster I), where the passive elements in the topology are replaced by ...
Jan Dvorak   +4 more
doaj   +1 more source

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